1311033431434 has 8 divisors (see below), whose sum is σ = 2029987248768. Its totient is φ = 634371015180.

The previous prime is 1311033431423. The next prime is 1311033431447. The reversal of 1311033431434 is 4341343301131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1311033431396 and 1311033431405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10572850192 + ... + 10572850315.

It is an arithmetic number, because the mean of its divisors is an integer number (253748406096).

Almost surely, 2^{1311033431434} is an apocalyptic number.

1311033431434 is a deficient number, since it is larger than the sum of its proper divisors (718953817334).

1311033431434 is a wasteful number, since it uses less digits than its factorization.

1311033431434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145700540.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 1311033431434 its reverse (4341343301131), we get a palindrome (5652376732565).

The spelling of 1311033431434 in words is "one trillion, three hundred eleven billion, thirty-three million, four hundred thirty-one thousand, four hundred thirty-four".